Operating instructions

R&S ESCI [SENSe:]ADEMod - Subsystem
1166.6004.12 6.133 E-1
[SENSe:]ADEMod[:STATe] ON | OFF
This command activates the FM demodulator of the instrument. The instrument will be set to time
domain measurement (span = 0) at the current center frequency. The detector will be set to SAMPle,
the demodulator itself will be set up according to the parameters of command
[SENSe:]ADEMod:SET.
Note: The measurement is always performed in Screen A. Split Screen operation will be switched
off as soon as the Demodulator is activated.
Example: "ADEM ON" 'Switches the AM/FM demodulator on with the parameters set by
[SENSe:]ADEMod:SET.
Characteristics: *RST value: OFF
SCPI: device-specific
Mode:FM
This command is only available with option R&S FS-K7 (FM Demodulator).
[SENSe:]ADEMod:SET <sample rate>,<record length>, <trigger source>,<trigger slope>,<offset
samples>,<# of meas>
This command configures the AM/FM demodulator of the instrument.
Parameters:
<sample rate>: The frequency at which measurement values are taken from the A/D-
converter and stored in I/Q memory.
Valid range: 15.625 kHz, 31.25 kHz, 62.5 kHz, 125 kHz, 250 kHz, 500 kHz,
1 MHz, 2 MHz, 4 MHz, 8 MHz, 16 MHz,
32 MHz with <filter type> = NORMal
<record length>: Number of samples to be stored in I/Q memory. Valid range:1 to 130560 (128
* 1024 - 512)
<trigger source>: Selection of the trigger source to use for the demodulator.
Valid values: IMMediate | EXTernal | IFPower | RFPower | AF | AM | FM | PM
<trigger slope>: Used slope of the trigger signal.
Valid values: POSitive | NEGative
The value indicated here will be ignored for <trigger source> = IMMediate.
<offset samples>: Number of samples to be used as an offset to the trigger signal.
Valid range: -65024 to 130559 (= -64 * 1024 + 512 to 128 * 1024 - 513)
The value indicated here will be ignored for <trigger source> = IMMediate.
<# of meas>: Number of repetitions of the measurement to be executed. The value
indicated here is especially necessary for the average/maxhold/minhold
function. Valid range:0 to 32767
Examples: ADEM:SET 8MHz,32000,EXT,POS,-500,30
'Executes a measurement at sample rate= 8 MHz
record length= 32000; trigger source = EXTernal
trigger slope = POSitive; offset samples = -500 (= 500 samples
before trigger occurred); # of meas = 30
Characteristics: *RST values: sample rate= 8 MHz
record length= 501
trigger source = IMMediate
trigger slope = POSitive
offset samples = 0
# of meas = 0
SCPI: device-specific
Mode:FM
This command is only available with option R&S FS-K7 (FM Demodulator).